EP4585712A4 - Austenitischer edelstahl mit hervorragender tieftemperaturschlagzähigkeit und verfahren zur herstellung davon - Google Patents

Austenitischer edelstahl mit hervorragender tieftemperaturschlagzähigkeit und verfahren zur herstellung davon

Info

Publication number
EP4585712A4
EP4585712A4 EP23877405.3A EP23877405A EP4585712A4 EP 4585712 A4 EP4585712 A4 EP 4585712A4 EP 23877405 A EP23877405 A EP 23877405A EP 4585712 A4 EP4585712 A4 EP 4585712A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
stainless steel
lower temperature
austenitic stainless
temperature impact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23877405.3A
Other languages
English (en)
French (fr)
Other versions
EP4585712A1 (de
Inventor
Seokweon Song
Kwangmin Kim
Hongju Lee
Inho Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP4585712A1 publication Critical patent/EP4585712A1/de
Publication of EP4585712A4 publication Critical patent/EP4585712A4/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—Final recrystallisation annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
EP23877405.3A 2022-10-11 2023-05-23 Austenitischer edelstahl mit hervorragender tieftemperaturschlagzähigkeit und verfahren zur herstellung davon Pending EP4585712A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220129778A KR20240050060A (ko) 2022-10-11 2022-10-11 저온 충격인성이 우수한 오스테나이트계 스테인리스강 및 그 제조 방법
PCT/KR2023/006957 WO2024080474A1 (ko) 2022-10-11 2023-05-23 저온 충격인성이 우수한 오스테나이트계 스테인리스강 및 그 제조 방법

Publications (2)

Publication Number Publication Date
EP4585712A1 EP4585712A1 (de) 2025-07-16
EP4585712A4 true EP4585712A4 (de) 2026-04-22

Family

ID=90669388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23877405.3A Pending EP4585712A4 (de) 2022-10-11 2023-05-23 Austenitischer edelstahl mit hervorragender tieftemperaturschlagzähigkeit und verfahren zur herstellung davon

Country Status (5)

Country Link
EP (1) EP4585712A4 (de)
JP (1) JP2025533644A (de)
KR (1) KR20240050060A (de)
CN (1) CN120019173A (de)
WO (1) WO2024080474A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118460926B (zh) * 2024-05-21 2025-11-21 山西太钢不锈钢股份有限公司 一种易加工高硬化奥氏体不锈钢及其制造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61270356A (ja) * 1985-05-24 1986-11-29 Kobe Steel Ltd 極低温で高強度高靭性を有するオ−ステナイト系ステンレス鋼板
CN113136533A (zh) * 2021-04-15 2021-07-20 鞍钢股份有限公司 一种低温用奥氏体不锈钢及其制造方法
CN114250421A (zh) * 2021-12-31 2022-03-29 福建青拓特钢技术研究有限公司 焊后抗晶间腐蚀和点蚀性能优于316l的高氮奥氏体不锈钢及制造方法
WO2022108173A1 (ko) * 2020-11-23 2022-05-27 주식회사 포스코 수소 환경에서 저온인성이 향상된 고강도 오스테나이트계 스테인리스강
KR20220071006A (ko) * 2020-11-23 2022-05-31 주식회사 포스코 저온충격인성 및 강도가 향상된 고질소 오스테나이트 스테인리스강 및 그 제조방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107406934B (zh) * 2015-03-06 2019-11-08 新日铁住金不锈钢株式会社 耐氢脆化特性优异的高强度奥氏体系不锈钢及其制造方法
JP6801236B2 (ja) * 2015-06-16 2020-12-16 日本製鉄株式会社 低温水素用オーステナイト系ステンレス鋼及びその製造方法
KR102170945B1 (ko) * 2018-10-23 2020-10-29 주식회사 포스코 피로수명이 우수한 오스테나이트계 스테인리스강 및 그 제조방법
CN112877589B (zh) * 2019-11-29 2022-03-18 宝山钢铁股份有限公司 一种碳钢奥氏体不锈钢轧制复合板及其制造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61270356A (ja) * 1985-05-24 1986-11-29 Kobe Steel Ltd 極低温で高強度高靭性を有するオ−ステナイト系ステンレス鋼板
WO2022108173A1 (ko) * 2020-11-23 2022-05-27 주식회사 포스코 수소 환경에서 저온인성이 향상된 고강도 오스테나이트계 스테인리스강
KR20220071006A (ko) * 2020-11-23 2022-05-31 주식회사 포스코 저온충격인성 및 강도가 향상된 고질소 오스테나이트 스테인리스강 및 그 제조방법
CN113136533A (zh) * 2021-04-15 2021-07-20 鞍钢股份有限公司 一种低温用奥氏体不锈钢及其制造方法
CN114250421A (zh) * 2021-12-31 2022-03-29 福建青拓特钢技术研究有限公司 焊后抗晶间腐蚀和点蚀性能优于316l的高氮奥氏体不锈钢及制造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024080474A1 *

Also Published As

Publication number Publication date
KR20240050060A (ko) 2024-04-18
WO2024080474A1 (ko) 2024-04-18
CN120019173A (zh) 2025-05-16
JP2025533644A (ja) 2025-10-07
EP4585712A1 (de) 2025-07-16

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